There may have been a DNR in place, in which case the EMTs and emergency care givers are NOT to provide any assistance if the patient passes on. After 13 years of caring for my elderly mother, we were forced to place her in an assisted living facility. She was NOT forced to sign a DNR, but did have to indicate what her wishes were should she suffer a medical event from which she could not recover without some form of treatment/assistance.
She decided that, at the age of 93, she didn't want to be artificially kept alive via machines, and if it was her time to go, let her go. Her quality of life sucks right now, and I concur with her wishes. I hope she goes painlessly and without anxiety, preferably in her sleep where she is safely in her bed. I've had enough gut-wrenching and stressful medical emergencies to last the rest of my life.
Modern medicine is great in some ways, but it has not done any favors to some people who suffer from debilitating diseases and are kept alive because of medicines and implants.